Unit 4. Electricity2

unit 4. electricity2
reading a 课  时 第1课时
教学目标 1. 让学生了解科普文章类文章，培养学生的阅读兴趣；
2. 引导学生学习有关电的来源、电的流程、使用途径等知识内容，激发学生思维；
3. 引发学生思考电是人类仆人的真正含义
重点和难点 1. 学习和掌握与电相关的词汇与句型；
2. 培养阅读技巧；
3. 了解电的产生与输出过程。

教学过程 
step1. warming-up
1. talk about the cartoon picture on p49.
2. discuss some things about electricity.

step2. pre-reading preparation
1.    let the students discuss in group, then answering the following questions.
what does electricity look like?
how can we know there is electricity.
what can we do with electricity?

step3. while-reading
1.   look at the title, the picture, the first and the last paragraphs and answer the questions of a1:
what is the girl going to buy?
what did the boy ask her to do?
who or what is the servant